{"id":"CVE-2026-45838","summary":"bpf: fix end-of-list detection in cgroup_storage_get_next_key()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: fix end-of-list detection in cgroup_storage_get_next_key()\n\nlist_next_entry() never returns NULL -- when the current element is the\nlast entry it wraps to the list head via container_of(). The subsequent\nNULL check is therefore dead code and get_next_key() never returns\n-ENOENT for the last element, instead reading storage-\u003ekey from a bogus\npointer that aliases internal map fields and copying the result to\nuserspace.\n\nReplace it with list_entry_is_head() so the function correctly returns\n-ENOENT when there are no more entries.","modified":"2026-06-05T18:29:34.999573080Z","published":"2026-05-27T09:24:36.561Z","related":["openSUSE-SU-2026:10954-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45838.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0f3d9dd5e1fd52b39e25328307c6a694e994ffe3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/26d3339e465e54107bd85884341d1609c5300d6a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2c88b2d96e1d4d0c7c4589a4593d4cdee6d332d6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/32ce55d424395904986f5066f8755f6cb9993377"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5828b9e5b272ecff7cf5d345128d3de7324117f7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/85a2f30e40f7468db732f55659bc6318874f49af"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b4b5a20bed82130da2f2818f04d52378952fbd0b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fc39753b7f92e09177777e9c648afe5aa3abb81f"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45838.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45838"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"de9cbbaadba5adf88a19e46df61f7054000838f6"},{"fixed":"0f3d9dd5e1fd52b39e25328307c6a694e994ffe3"},{"fixed":"26d3339e465e54107bd85884341d1609c5300d6a"},{"fixed":"2c88b2d96e1d4d0c7c4589a4593d4cdee6d332d6"},{"fixed":"b4b5a20bed82130da2f2818f04d52378952fbd0b"},{"fixed":"85a2f30e40f7468db732f55659bc6318874f49af"},{"fixed":"32ce55d424395904986f5066f8755f6cb9993377"},{"fixed":"fc39753b7f92e09177777e9c648afe5aa3abb81f"},{"fixed":"5828b9e5b272ecff7cf5d345128d3de7324117f7"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-45838.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.19.0"},{"fixed":"5.10.258"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.209"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.175"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.141"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.91"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.33"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.10"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-45838.json"}}],"schema_version":"1.7.5"}